ISO/IEC 80079-20-2:2016作为双标识标准发布，描述了可燃性粉尘和可燃性粉尘层识别的试验方法，以便进行分类 存在此类材料的区域，以便在存在可燃粉尘的情况下正确选择和安装电气和机械设备。标准 测定可燃粉尘特性的大气条件为: -温度-20°C至60°C， -压力从80千帕（0.8巴）到110千帕（1.1巴），以及 -含氧量正常的空气，通常为21%v/v。规定的试验方法不适用于: -公认的爆炸物、推进剂（如火药、炸药）或物质或物质混合物，在某些情况下可能以类似的方式或 -燃烧不需要大气氧气的炸药和推进剂粉尘，或燃烧自燃物质。本第一版取消并取代了1994年出版的IEC 61241-2-1第一版、1993年出版的IEC 61241-2-2第一版和1994年出版的IEC 61241-2-3第一版，将这些要求合并为一个文件，并被视为构成技术修订。有关IEC 61241-2-1:1994、IEC 61241-2-2:1993和IEC 61241-2-3:1994的重大变化，请参见本文件前言。 关键词:可燃性粉尘

ISO/IEC 80079-20-2:2016 is published as a dual logo standard and describes the test methods for the identification of combustible dust and combustible dust layers in order to permit classification of areas where such materials exist for the purpose of the proper selection and installation of electrical and mechanical equipment for use in the presence of combustible dust. The standard atmospheric conditions for determination of characteristics of combustible dusts are: - temperature -20 °C to 60 °C, - pressure 80 kPa (0,8 bar) to 110 kPa (1,1 bar) and - air with normal oxygen content, typically 21 % v/v. The test methods defined do not apply to: - recognized explosives, propellants (e.g. gunpowder, dynamite), or substances or mixtures of substances which may, under some circumstances, behave in a similar manner or - dusts of explosives and propellants that do not require atmospheric oxygen for combustion, or to pyrophoric substances. This first edition cancels and replaces the first edition of IEC 61241-2-1 published in 1994, the first edition of IEC 61241-2-2 published in 1993 and the first edition of IEC 61241-2-3 published in 1994, combining the requirements into a single document, and is considered to constitute a technical revision. Significant changes with respect to IEC 61241-2-1:1994, IEC 61241-2-2:1993 and IEC 61241-2-3:1994 can be found in the foreword of the document. Keywords: combustible dust